Java™ How to Program, Seventh Edition

7.8. Case Study: Class GradeBook Using an Array to Store Grades

This section further evolves class GradeBook, introduced in Chapter 3 and expanded in Chapters 4–5. Recall that this class represents a grade book used by a professor to store and analyze a set of student grades. Previous versions of the class process a set of grades entered by the user, but do not maintain the individual grade values in instance variables of the class. Thus, repeat calculations require the user to reenter the same grades. One way to solve this problem would be to store each grade entered in an individual instance of the class. For example, we could create instance variables grade1, grade2, ..., grade10 in class GradeBook to store 10 student grades. However, the ...